Tire tread and buttress



FIG. 1 is a front elevational view of a tire tread and buttress showing my new design;

FIG. 2 is a perspective view thereof on a reduced scale;

FIG. 3 is another perspective view thereof on a reduced scale;

FIG. 4 is a side elevational view thereof on a reduced scale;

FIG. 5 is another side elevational view thereof; and,

FIG. 6 is an enlarged fragmentary front view thereof.

The broken line showing of the tire sidewall in the drawings is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tire tread and buttress, as shown and described. 